/*
 * Bytecode Analysis Framework
 * Copyright (C) 2003,2004 University of Maryland
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.umd.cs.findbugs.ba.type;

import org.apache.bcel.generic.Type;

import edu.umd.cs.findbugs.ba.DataflowAnalysisException;

/**
 * Interface for object which merges types for TypeAnalysis.
 * By allowing multiple implementations, we allow creation of
 * specialized type systems.
 *
 * @author David Hovemeyer
 * @see TypeAnalysis
 */
public interface TypeMerger {
	/**
	 * Merge type Types.
	 *
	 * @param a a Type
	 * @param b a Type
	 * @return the result of merging the two Types
	 */
	public Type mergeTypes(Type a, Type b) throws DataflowAnalysisException;
}

// vim:ts=4
